Patent GB-835899-A (GB)
Title: Improvements in or relating to convection treatment apparatus
Inventor: SPOONER WILLIAM WYCLIFFE
IPC: F26B15/18
Filed: 1956-09-12
Abstract: <FORM:0835899/IV(c)/1> <FORM:0835899/IV(c)/2> <FORM:0835899/IV(c)/3> p  <FORM:0835899/IV(c)/4> <FORM:0835899/IV(c)/5> <FORM:0835899/IV(c)/6> <FORM:0835899/IV(c)/7> <FORM:0835899/IV(c)/8> <FORM:0835899/IV(c)/9> Apparatus for the treatment of textile materials with a gaseous medium comprises at least one pressure chamber the face of which, which faces material to be treated, being open, one or more gaseous medium discharge assemblies each having at least one gaseous medium discharge opening or nozzle and being adapted to be slidably received for ready insertion in and withdrawal from the pressure chamber or chambers so as substantially to close the open face thereof apart from said discharge opening or nozzle, and means for delivering gaseous medium to the pressure chamber for discharge through at least one opening or nozzle towards the material.  As shown in Figs. 1-3 accompanying the first Provisional Specification, a rectangular nozzle frame has three sides 2, 3, 4 formed of inverted T-section bar, a fourth side 5 of angle bar and convergent nozzle 56 having slit-like discharge openings 7.  Outer flanges 10 of the T-section sides 2, 4 serve as slides for engagement in slideways 11, 12 provided on opposing inner faces of pressure chambers 13, 14.  Alternatively the openings or nozzles may be pressed out from metal sheet, the marginal edges of which serve as flanges.  In Fig. 4 pressure chambers 19, 20 are separated by treatment chamber 21 which is bounded above and below by groups of nozzle assemblies of the type shown in Figs. 1 and 2 and through which materials may be conveyed on a conveyer running between the nozzle assemblies.  Gaseous medium fed to the upper pressure chamber 19 by fan 17 via discharge duct 18 may pass to lower pressure chamber 20 between casing 15 and wall 22.  Flanges 24, 25 are analogous to 11, 12 (Fig. 3).  The space 29 between wall 27 and casing 15 communicates with treatment chamber 21 and serves as a return passage for the flow of gaseous medium back to the intake 30 of fan 17. Releasable catches 34 pivoted to wall 27 and fitted with handles 33 secure the nozzle frames in position.  As shown in Figs. 1-4 of the drawings accompanying the second Provisional Specification, a baffle deflector plate 11 may be positioned to deflect gaseous medium issuing from nozzle 7 in the longitudinal direction of the apparatus. A nozzle tube 12 supported on plate 6 defines a slitlike opening 13 supported by supply tubes 14 slidably mounted in boxes 15 attached to the upper surface of and communicating with the underside of plate 6. Adjustment of tubes 14 in boxes 15 permits the position of the nozzles transversely of the conveyer (indicated by chain-dotted line 18) to be predetermined.  The nozzle assemblies may be slid into the apparatus in a drawer-like manner and may be readily withdrawn either for cleaning or for replacement by an assembly embodying differently shaped or distributed nozzles.  In Fig. 5 nozzle plate 6 carries two parallel vanes 19, and Fig. 6 shows a similar apparatus with a baffle 21.  Fig. 7 shows two parallel spaced pairs of nozzle plates 23, slits 24, and a baffle 25.  Fig. 8 is similar to Fig. 4 of the first Provisional Specification except that two different forms of nozzle assembly are shown in position, producing a longitudinal and lateral gaseous flow respectively. Fig. 9 shows nozzle 544 mounted on supply tubes 45, the latter being slidably mountable on wall 31.